Steam heating apparatus for railway-cars



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P; REILLY-3, STEAM HEATING APPARATUS ro- RAILWAY ems. No. 502

,204. Patenwd. July 25, 1893.

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P. ,REILLY. STEAM HEATING APPARATUS FOR RAILWAY CARS.

No. 502,204. Patent-ed July 25, 1893. Y

UNITED STATES PATENT OFFICE.

PATRICK REILLY, OF LIMA, OHIO.

STEAM HEATING APPARATUS FOR RAILWAY-CARS.

PECIFICATION forming part of Letters Patent No. 502,204, dated July 25,1893.

Application filed April '7, 1893- Serial No. 469,466- (N m d i To allwhom it may concern.-

Be it known that I, PATRICK REILLY, a citizen of the United States,residing at Lima, in the county of Allen and State of Ohio, have in-'vented certain newand useful Improvements in Steam Heating Apparatus forRailway- Cars; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to steam heating apparatus for railway cars, and inconsists in so arranging and constructing the service pipes and cooksthat an improved heater is produced, and also the heat of a single carcan be regulated independently of another car, or the heat of all thecars kept uniform as desired, as will be hereinafter described andclaimed.

In the accompanying drawings, Figure lis a longitudinal section througha portion of a car showing the steam piping'on one side of the same, theother side of the car being similarly piped. Fig. 2 is a horizontalsection through a car, showing the coils of pipes on opposite sides ofthe car and connected by cross pipes formed with a T-coupling by whichthe pipes of one car are connected with the pipes of another car. Fig. 3is a side elevation of the system of pipes and cocks as arranged on oneside of a car and provided with end cross connecting pipes, and Fig. 4is atop plan view of the same, showing also a cock in the end of theconnecting pipe for shutting 01f the steam from entering the pipes of anadjoining car.

A in the drawings represents a system of pipes and cooks arranged oneach side of a car, both systems being the same in construction andarrangement so thata description of one will suffice for both. Thesystem of pipes consists of a series of pipes preferably three a, a, a?arranged longitudinally along the sides of the car, one above the other.The three pipes are united by connections B B, both of which connectionsare constructed with diaphragms or bridges b b respectively for apurpose presently to be described. The diaphragm b is arranged in theconnection B between the pipes a and a and the diaphragm b is arrangedin the connection B between the pipes or and o The pipe a is providedwith a cock 1,pipe awith cock 2 and piped, with cocks 3 and 4. The endconnections B B are also provided in their lower ends with Waste cocks bb for letting out water formed by the steam condensing. The pipes a anda are joined at one of their ends by a cross connecting pipe 0 and thepipe or is connected at its other end with a cross connecting pipe D.The cross connecting pipes are provided with T.-shaped joints 0 and drespectively, in which are screwed pipes E provided with cocks e, towhich pipes flexible connections F are attached, as shown in Figs. 1 and2.

The arrangement and construction of the pipes, cocks and connections ofone car are the same in all the cars. The cross pipes and theirconnections are under the floor of the car while the steam pipes areinside the car along both sides of the same.

The operation of the invention is as follows: Steam from the engineboiler passes through the flexible connection into the T-shaped joint orcouplingc and passes to the pipes on one or both sides of the car. Thepassage of the steam through the pipes is controlled by the arrangementand operation of the cooks. If it is desired to utilize the full heatingcapacity of the steam, cocks 1, 2 and 4 are opened and cook 3 is closed.By this arrangement the steam first passes into and along the upper pipeat, thence through the connection B into and back along the pipe a intothe connection B and thence into and along the pipe at to the endconnecting pipe, and from thence through the flexible connect-ion to thesystem of pipes in another car. The arrangement just described utilizesall the pipes and secures the greatest amountof heat as the steam iscaused to pass through the car three times before leaving the same. Whena less amount of heat is required, cocks 1 and 2 are closed and cocks 3and 4: left open so that the steam passes only through pipe a directlyto the coil of the next car and by similarly arranging the cooks in thiscoil the steam will pass through in the same manner. Or, if desired, allthe cooks in a coil in one car may be left open while only cocks 3 andtmay be left open in the coil of another car, so that the temperaturemay be different or the same in each car as circumstances may require;or again, a coil on one side of a car can be cut out entirely and allthe pipes ora single pipe of the coil on the opposite side of the carutilized. My car heating system practically consists of a direct heatingsection and a circulating section either of which can be used ascircumstances may require. The regula-. tion of the steam in one cardoes not in any way aitect the temperature of the other cars in thetrain.

Most of the steam heating systems for cars employ a main pipe beneaththe car connected with small radiating pipes inside the car. In mysystem I dispense with the main pipe and arrange all the pipes insidethe car except the cross pipes at the ends of the cars and theconnections between the cars. By actual test in train service I findthat I can heat a train in less than one half the time required bysystems employing a main train pipe. My system will be found very simpleand cheap and free from all complicated valves and traps, and alsoobviates the necessity of placing one pipe within the other for securingthe return of the steam before leaving the car.

What I claim as my invention is- 1. In a car heating system, thecombination of a direct main heating line section 60 provided with inletand outlet cocks 3and 4, and a circulatory section comprising a seriesof longitudinally arranged pipes at, a, the pipe a being provided with acock 1 and the pipe a being provided with a cock 2, both sections beinglocated inside of and running through the car and connected by hollowend connections B B, each of which latter is provided with a diaphragm,the diaphragm b in the connection B being arranged between the pointswhere the pipes a. a. enter said connection and the diaphragm I) in theconnection B being between the points where the pipes'ct' a enter saidconnection, whereby by a proper manipulation of the cocks, the steammaybe passed in a direct line through the car or caused to circulateback and forth through the pipes and pass out at the opposite end of thesystem of pipes from which it entered, substantially as described.

2. In a car heating system the combination of a direct main heating linesection (1. provided with inlet and outlet cocks 3 and 4, and acirculatory section comprising a series of longitudinally arranged pipesa, a, the pipe ct being provided with a cock 1 and the pipe ct beingprovided with a cock 2 both sections being located inside of and runningthrough the ear and connected by hollow end connections B 13' each ofwhich latter is provided with draw-01f cocks and a diaphragm, thediaphragm b in the connection B being'arranged between the points wherethe pipes at. a enter said connection and the diaphragm b in theconnection B being between the points where the pipes aa enter saidconnection, whereby by a proper manipulation of the cocks, the steam maybe passed in a direct line through the car or caused to circulate backand forth through the pipes and pass out at the opposite end of thesystem of pipes from which it entered, substantiallyas described.

In testimony whereof Iallix my signature in presence of two witnesses.

PATRICK REILLY.

